Locked-in syndrome (LIS) is caused by bilateral pontine infarction (most commonly from basilar artery occlusion) that destroys the descending motor pathways while preserving consciousness and vertical eye movement. In classical complete LIS, the person is entirely paralysed except for vertical eye movement and blinking -- they cannot speak, move any limb, or walk. A walking cane is obviously not applicable in this state.
This article addresses the minority of patients who achieve partial recovery from LIS -- a recognised but uncommon outcome. Partial recovery may include recovery of some voluntary limb movement, partial speech, or the ability to stand and take some steps with maximal assistance. In this context, the cane enters the picture as part of a very challenging rehabilitation trajectory.
Partial Recovery from LIS: The Evidence
Approximately 10-25% of LIS patients achieve some degree of functional improvement, particularly those with onset in younger age and early aggressive rehabilitation. Recovery follows a stereotyped pattern:
- Eye movement first (vertical gaze often preserved from onset)
- Facial and oral function next (lip movement, jaw, limited speech)
- Upper limb function (partial finger or wrist movement)
- Lower limb function last (the most distal from the pontine lesion in terms of rehabilitation timeline)
Walking Aid Context in LIS Partial Recovery
For the small proportion of patients who regain sufficient lower limb function to stand and attempt walking, the rehabilitation path involves:
- Standing frame and bilateral support initially
- Forearm crutches or parallel bars as leg strength recovers
- A single cane is a long-term target that may be achieved by some patients with early onset, high motivation, and intensive rehabilitation support
The rehabilitation context for LIS partial recovery is specialised neuro-rehabilitation, and walking aid selection is made by the physiotherapy team as function emerges. The cane represents the least-support end of the walking aid spectrum and reflects substantial functional recovery when achieved.
LIS Recovery and Walking Aid Progression
| Recovery Stage | Motor Function | Walking Aid |
|---|---|---|
| Complete LIS | No limb movement; eye/blink only | Not applicable; eye-gaze communication |
| Minimal recovery | Some facial or hand movement; no lower limb | Not applicable for walking |
| Partial recovery (lower limb) | Some lower limb movement; unable to stand independently | Bilateral forearm crutches with therapist; standing frame |
| Substantial recovery | Stands with support; limited steps | Bilateral forearm crutches; progressing toward unilateral |
| Significant recovery (rare) | Community ambulation with aid | Single cane as long-term goal; forearm crutch during transition |
Explore DaiWalk walking canes. Related: Walking Cane for Post-Stroke Hemiplegia
